Evaluate.Let a = 8i. Find 4a.
A. 12
B. 12i
C. 32i
D. 32
Answer: C
Mathematics
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Solve the problem.How much work is required to move an object from x = 0 to x = 5 (measured in meters) in the presence of a constant force of 10 N acting along the x-axis?
A. 2 J B. 125 J C. ? D. 50 J
Mathematics
Provide an appropriate response.True or False? The world population growth rate is equal to the birth rate subtracted from the death rate.
A. False B. True
Mathematics
Perform the requested operation on the given function.f(x) = -4x2 + 7x - 8, g(x) = 5x + 9Find (f + g)(-2).
A. -36 B. -9 C. -39 D. -7
Mathematics
Write the English phrase as an algebraic expression. Let the variable x represent the number.Twice a number, increased by 79
A. 2x - 79 B. 2x + 79 C. 2(x + 79) D. x + 79
Mathematics